Orange Line Improvement Project
The MTS Orange Line Improvement Project will improve the Orange Line between the 32nd & Commercial Street Station and the El Cajon Transit Center, increasing reliability, enhancing safety, and improving operational efficiencies. Through significant investment in infrastructure upgrades, safety enhancements and service reliability improvements, this project will ensure the Orange Line continues to serve riders efficiently, safely and dependably for years to come.
Construction is expected to take place between June 2025 and early 2028. There will be multiple weekend-long track closures between the El Cajon Transit Center and 32nd & Commercial. Riders can expect 1 – 3 stations to be impacted at any given time. MTS will still service all stations during the weekend-long closures with dedicated bus service.
Project Benefits
The Orange Line Improvement Project will:
- Minimize delays
- Improve schedule reliability
- Replace aging infrastructure
- Allow Trolleys to travel faster
- Enhance the safety of the corridor
Check back for more information about project updates and track closure schedules or sign up for alerts directly to your inbox below. Text message alerts will also be available at a later date.
Construction Time and Impacts
As part of this effort to maintain a solid state of good repair, MTS will need to shut down the tracks for 11 weekends for Phase 1 (Saturday at 1 a.m. through Monday at 4 a.m.) between October 2025 and November 2026.
During these closures, called Absolute Work Windows (AWW), riders will still be able to access all Trolley stations by taking a dedicated MTS bus shuttle. Riders will not have to pay an extra fare for using the bus shuttle.
Scheduled Closures
Closure # | Bus Bridge | Dates* | |||
---|---|---|---|---|---|
Closure # | 1 | Bus Bridge | A | Dates* | October 18-19 2025** |
Closure # | 2 | Bus Bridge | A | Dates* | November 8-9 2025 |
Closure # | 3 | Bus Bridge | A | Dates* | January 2026 |
Closure # | 4 | Bus Bridge | A | Dates* | February 2026 |
Closure # | 5 | Bus Bridge | C | Dates* | March 2026 |
Closure # | 6 | Bus Bridge | B | Dates* | July 2026 |
Closure # | 7 | Bus Bridge | D | Dates* | August 2026 |
Closure # | 8 | Bus Bridge | D | Dates* | August 2026 |
Closure # | 9 | Bus Bridge | D | Dates* | September 2026 |
Closure # | 10 | Bus Bridge | D | Dates* | October 2026 |
Closure # | 11 | Bus Bridge | D | Dates* | November 2026 |
*Dates subject to change. Exact closure dates will be posted 30 days in advance.
** October dates are tentative and may be adjusted based on the MLB postseason schedule.
Stay in the Know
Ways the public can find out about Orange Line Improvement Project Construction Alerts:
- Follow MTS on X for alerts
- Sign up for our e-newsletter
- Sign up for text message alerts - Coming Soon! Sign up for the E-Newsletter and MTS will email you when text message alerts are available.
- Find all upcoming closure dates and schedules here
Call MTS Information and Trip Planning
(619) 233-3004
Monday-Friday: 5:30 a.m. – 8:30 p.m.
Saturday-Sunday: 7 a.m. – 7 p.m.
Documents
Download the fact sheets below.